addi r0,r1,$0010 ; # r1: x->0x0010 
addi r0,r2,$0001 ; # r2: x->0x0001
j $0006; # jump to phase update r2
addi r3,r3,$0100 ;
addi r4,r4,$1000 ;
addi r1,r1,$0010 ; # r1: x->0x0020 (false)
addi r2,r2,$0001 ; # r2: x->0x0002 (true)
add r1,r2,r3 ; # r3: x-> 0x0012(true)
nop
nop
nop
nop
nop
